diff --git a/scripts/install b/scripts/install
index 8a1de20..8aaf236 100644
--- a/scripts/install
+++ b/scripts/install
@@ -297,12 +297,12 @@ public_ip6="$(curl -s ipv6.yunohost.org)" || true
 turn_external_ip=""
 if [ -n "$public_ip4" ] && ynh_validate_ip4 --ip_address="$public_ip4"
 then
-    turn_external_ip+="\nexternal-ip=$public_ip4"
+    turn_external_ip+="external-ip="$public_ip4%"\n"
 fi
 
 if [ -n "$public_ip6" ] && ynh_validate_ip6 --ip_address="$public_ip6"
 then
-    turn_external_ip+="\nexternal-ip=$public_ip6"
+    turn_external_ip+="external-ip="$public_ip6%"\n"
 fi
 
 ynh_add_config --template="turnserver.conf" --destination="/etc/matrix-$app/coturn.conf"
diff --git a/scripts/restore b/scripts/restore
index 347c02e..c12625e 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -176,12 +176,12 @@ public_ip6="$(curl -s ipv6.yunohost.org)" || true
 turn_external_ip=""
 if [ -n "$public_ip4" ] && ynh_validate_ip4 --ip_address="$public_ip4"
 then
-    turn_external_ip+="\nexternal-ip=$public_ip4"
+    turn_external_ip+="external-ip="$public_ip4%"\n"
 fi
 
 if [ -n "$public_ip6" ] && ynh_validate_ip6 --ip_address="$public_ip6"
 then
-    turn_external_ip+="\nexternal-ip=$public_ip6"
+    turn_external_ip+="external-ip="$public_ip6%"\n"
 fi
 
 ynh_add_config --template="turnserver.conf" --destination="/etc/matrix-$app/coturn.conf"
diff --git a/scripts/upgrade b/scripts/upgrade
index fd169c1..714aeba 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -352,12 +352,12 @@ public_ip6="$(curl -s ipv6.yunohost.org)" || true
 turn_external_ip=""
 if [ -n "$public_ip4" ] && ynh_validate_ip4 --ip_address="$public_ip4"
 then
-    turn_external_ip+="\nexternal-ip=$public_ip4"
+    turn_external_ip+="external-ip="$public_ip4%"\n"
 fi
 
 if [ -n "$public_ip6" ] && ynh_validate_ip6 --ip_address="$public_ip6"
 then
-    turn_external_ip+="\nexternal-ip=$public_ip6"
+    turn_external_ip+="external-ip="$public_ip6%"\n"
 fi
 
 ynh_add_config --template="turnserver.conf" --destination="/etc/matrix-$app/coturn.conf"